Jolt ramming-machine.



E. lVl. HUGGlNS.. JOLT RAMMING NIACHlNE. APPLICAHON FILED man` |914.

1,242,351.; Aman@ 001;. 9,1917.

UNl-TED f 1 EDWARD MELVILLF'HGGIas,QFNEW.YQBK,Na if i HUcGrNs, a citizenv ofthe United States, re-

' 1 AThis To all who/m. z' .may concern.'

j Be it yknown that I, EDWARD MELVILLE siding at New York, in thej county .and State of New York, have invented certain newand useful Improvements in Jolt Ramming-Mac hines, of which the following isa specificatlon. -Y i: invention relates to joltframming machinesrfor ramming sandv molds and the likeand it has-for one lof its primary 'objects the provision of an improved arrange-y ment of jolt ramming machine whereinwear on the parts4 is automaticallyv compensated for, therebyadding to the general efficiency of the machine and ,thexlengthxof its life. Another object of my invention residesinthe provision of a novel'impact, or anvil sur face which is soarranged -thatthe forceof the impact I is equally'- vdistributed -zat all times, regardless of any wear ofthe parts. i

lThe foregoing togetherV with-such other comprises the :usual base 7 towhichiis bolted the cylinder 8 in which is mounted azplunger objects as may hereinafter -,ap,pear, or.A are incident to my invention, Iobtain by meansy of a construction whichI have illustratedin preferred form'in the accompanyingdrawing, the fgurebeinga partialsideelevation and verticaljsection of a jolt'rammingma-` chine embodying :my improved f-featuresf.- Referring now to the general arrangement of parts it will bef seenf thatV the Ymachine 9 having a-flanged top 1Q. Secured to the top 10 is the mold table 11:""The plunger 9 is preferably fluid actuated buti'any-other suitable operating means may. be. employed. In the present embodiment theffpi'pes 12 and 13 indicate the inlet and exhaust pipes respectively, the f1ow of fluidy pressure ibeing controlled in any desired manner. f The cylinder 8 is strengthened by a plurality of vertically extending radial ribs 14:

' and is further provided at the top with an annular rib or shoulder 15, which in effect constitutes an impact shoulder or anvil. It will be noted that the upper surface 15a is curved from the outer upper edge downward and inward toward the center of the machine. `Resting on such concaved surface is v an impactring 16 preferably of metal, the

lower surface of which is convex and is formed on the same radius of curvature as that of the surface 15a upon which it rests.

The upper surface of the impact ringk is 'Jour iaAlvnyrINe-'ivrncrrinn specification bf tercer;rafe't.fvv i Application-filed December 24,1914.` serialNo. 878,9815

Patentedoargfrigi,.

preferably flat and'isi elflgflged10517` 'theVA under i surface of the flanged top 10 whenvth'e plun-e ger 9 is in lower or bottom position.

normally tend' to hold the impactringelin, i

engagementwith the shoulder.15ill Onlyxone. of thepins 17 and its associated `parts are: shown but. it will readilyl be understood that any suitable number may benem'ployed.` The.A plunger :is steadied and A,guided-finl its-movement by-means of guide rods .23, which are bolted to the flanged top 10 and have sliding, engagement with the,` apertured guide lugs-y 24: formed on thek cylinder 8. -;-']he joint-be+ A tweenthe' impact ring andthe shoulder 155 is protected'bynthe annular l.guard ring 252 which is boltedtotheAunderwface ofthe top 10, preferably bymeans of ,the same-boltsQ which serve i to detachably :secure the ,table 11 to-the plunger top a: i w; f

:It will sbeseen -fromthe foreglllglhat the joint between the impact ring and-the? shoulder is in; effect al ball@joint.,WhGlfl.v pel'- vmits of a shiftingfof;theimpact l'ring with;

respect to the shoulder 115,1; thisshiiting;`

movement being permitted by virtue of the loose lit of the pinsV 171fin .the-apertures18;l

" lIn cases of wear of Vthe parts, or in other conditions of service, the impact ring will f shift during operation so as to provide a true impact surface and thus secure a uniform and equal distribution yof the force of the impact, thus greatly increasing the efficiency of the machine. The impact ring 10ov Y will freely shift through a limited range of, v

movement and it is at the same time yieldingly held in proper engagement with the shoulder by means of the springs 22. It will be obvious that. the curved impact surface may be arranged at another part of the machine, but I prefer to locate rit at the top of the cylinder as shown, adjacent the outer edge of the ytop of vthe 'plunger 'at which point it operates in the most advantageous thejconcave surface thereof, and a "plunger in the Cylinder adapted to'impact on the ring.

siderable variations may be made in the actual'stru'cture employed Without departing` from the spirit of the invention By virtue of its being mounted for automatically :shifting compensatory movement, theimpact ring Imay be termed a floating impact member.

"What Iclaim is:

l. 1ny a. jolt.` ramming machine, a verti' cally 4movable plunger, and an anvil portion surrounding the plunger' adapted to receive the Aimpact of the plunger and having a uniormly -curvedr impact surface, and a member-interposed between theplunger and the anvil carried on saidcurved impact surface.

Q2.' I-.nfaujolt i-amming machine, averticallymovab'le plunger, an anvil having a curvedimpact surface,'and a floating impact member carried on Lsaidrsurface adapted. to

receive the .impact of the plunger.

V'3;1In a jolt' ramming machine, a verticallyimovable plunger,"ananvil, and a compensating floatingy impact member adapted tof'receive the Iimpact of the plunger and automatically 'shiftto-distribute the. force of the impact substantial-ly equally.

' 4. :1n *ai jolt rammin-g .'mach'ne, aV cylinder hav-ing an anvil portion, a. plunger in said cylinderf'carryingxa mold table, and a com pensating .floating impact. ring-y `on the anvil portiongadaptedrto receive the` impact of the plunger'fand automatically shift-to distrib-v ute the rforce'of the impact uniformly.

' (5'. a-jolt rammingmachine, a cylinder havingffan annulareanvilrprovided with a curved rimpact surface, :a "floating impact ring carried on said surface-,fand a plunger inthe cylinder adapted'to f impact on said ring. p Y

V A6.'In a' jolt-ramming machine, `a cylinder having an annularcon'cave anvil, a convex impact: ring loosely carried on .the anvilk on copiesnef` this; patent may beobtainea for five cents eareh,rby addressing Washington, D. C.

" 7 Inak jolt rammiiig machine, a cylinder having an annular anvil provided With a curved impact surface, a floating impact ring vcarried on said surface, aplunger in the cylinder adapted to impact onV said' ring, and means yieldingly holding the ring in engagement With the anvil.

8. In a jolt ramining machine, the combination of a reciprocating member having an impact surface, andl an' impact receiving member vautomatically 'alining with the said impact-su'rfaeeli Y v j .9. Ina joltv ramming machine; al' plunger,

a'table carried on the plunger, a 'two-part impact anvil adjacent Vthe table the partis Whereo'fhave relative jmovement and on which thefplunger.-impacts, and a curtain protecting' the joint between 'the parts of tlieanvil. 1 l Y. Y

' 10. Ajoltframming machine comprising inrcombination, a"cy-linder-liafving lan anvil portion, a reciprocating member, paniT impact member having, a` AcurvedV face" carried :upon said. anvil portionrad'a'pted tofreceive the impact of thefreciprocating Amember, interengaging means on the impactmembler and anvili'portion' servingtdiposition f the im-V pact "memberr thereon but-zrpermizttng a limited -relative movement .off the impact member With respect'to".the anvil portion,

and a' plungervin the cylinder adaptedfto impact on/the impact member.` v

In a jolt rammingrmachine, tlie-coinbination of impacting members, the impact surfaces of` ywhich arel inverselyxslope'd to co-actxto automatically distribute: the force ofthe impact evenly. f f I In" testi ony yvhereof /I .have f' hereunto signedv my ynameirin. the presence Iof, the 'tivov subscribed ivitnesses.- f s u f yMELVIIKJLE4 Witnesses z. (1C. GREENLEE, Grd.y LEE.

the Y Commissioner ofA Patents; 

